sys-libs/slang: filter-lto, -fno-strict-aliasing

Not worth trying to fix the violations here.

Closes: https://bugs.gentoo.org/880589
Signed-off-by: Sam James <sam@gentoo.org>

sys-libs/slang/slang-2.3.3-r1.ebuild

@@ -0,0 +1,87 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic multilib-minimal
+
+DESCRIPTION="Multi-platform library designed to allow a developer to create robust software"
+HOMEPAGE="https://www.jedsoft.org/slang/"
+
+if [[ ${PV} == *_pre* ]] ; then
+	MY_P="${PN}-pre${PV/_pre/-}"
+	SRC_URI="https://www.jedsoft.org/snapshots/${MY_P}.tar.gz"
+	S="${WORKDIR}/${MY_P}"
+else
+	SRC_URI="
+		https://www.jedsoft.org/releases/${PN}/${P}.tar.bz2
+		https://www.jedsoft.org/releases/${PN}/old/${P}.tar.bz2
+	"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
+fi
+
+LICENSE="GPL-2"
+SLOT="0"
+IUSE="cjk pcre png readline static-libs zlib"
+
+# ncurses for ncurses5-config to get terminfo directory
+RDEPEND="
+	sys-libs/ncurses:=
+	cjk? ( >=dev-libs/oniguruma-5.9.5:=[${MULTILIB_USEDEP}] )
+	pcre? ( >=dev-libs/libpcre-8.33-r1[${MULTILIB_USEDEP}] )
+	png? ( >=media-libs/libpng-1.6.10:=[${MULTILIB_USEDEP}] )
+	readline? ( >=sys-libs/readline-6.2_p5-r1:=[${MULTILIB_USEDEP}] )
+	zlib? ( >=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}] )
+"
+DEPEND="${RDEPEND}"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.3.3-slsh-libs.patch
+)
+
+src_prepare() {
+	default
+
+	# Avoid linking to -ltermcap race with some systems
+	sed -i -e '/^TERMCAP=/s:=.*:=:' configure || die
+	# We use the GNU linker also on Solaris
+	sed -i -e 's/-G -fPIC/-shared -fPIC/g' \
+		-e 's/-Wl,-h,/-Wl,-soname,/g' configure || die
+
+	# Loads of blatant aliasing violations, bug #880589
+	append-flags -fno-strict-aliasing
+	filter-lto
+
+	# slang does not support configuration from another dir
+	multilib_copy_sources
+}
+
+multilib_src_configure() {
+	local myeconfargs=(
+		--with-readline=$(usex readline gnu slang)
+		$(use_with pcre)
+		$(use_with cjk onig)
+		$(use_with png)
+		$(use_with zlib z)
+	)
+
+	econf "${myeconfargs[@]}"
+}
+
+multilib_src_compile() {
+	emake -j1 elf $(usev static-libs static)
+	emake -j1 -C slsh slsh
+}
+
+multilib_src_install() {
+	emake -j1 DESTDIR="${D}" install $(usev static-libs install-static)
+}
+
+multilib_src_install_all() {
+	rm -r "${ED}"/usr/share/doc/{slang,slsh} || die
+
+	local -a DOCS=( NEWS README *.txt doc/{,internal,text}/*.txt )
+	local -a HTML_DOCS=( doc/slangdoc.html slsh/doc/html/*.html )
+
+	einstalldocs
+}